From Film Session to Player's Phone in 2 Minutes: GLDS Performance Brief
AI coaching tool built for GLDS — coaches clip video, record voice, and deliver personalized player briefs via link in under 2 minutes. No app required.
Problem Statement
Coaches at GLDS were spending hours studying film, then delivering feedback through voice notes at midnight or buried in group chats where players tuned them out. Feedback was generic, hard to act on, and had no way to confirm players had even seen it. There was no tool designed for the reality of how coaches actually work.
Our Approach
HadidizFlow built Performance Brief — a mobile-first web app that lets coaches upload footage, clip the exact moment they're referencing on a visual filmstrip timeline, record a voice note or trigger AI-drafted observations in their coaching voice, and deliver a personalized brief to each player via a private token link. Players open one link, see their clip play, read the structured brief, and reply directly — no app install, no login.
Gemini AI Brief Generation
Challenges We Solved
A frame-accurate visual clip editor, entirely in the browser
Coaches needed to pinpoint an exact moment in a video — not a rough timestamp, but a visual moment they could see, drag, and confirm before sending. Default video controls made that slow and imprecise, and the workflow had to stay under two minutes end to end.
We built a custom visual timeline editor that renders the footage as a scrubbable strip of frames with draggable in/out handles and a live frame preview, so coaches select the exact moment by sight in seconds. Clips reference the original footage rather than re-encoding it, keeping the experience instant and storage lightweight.
Instant, login-free delivery that's still locked down
Players had to receive and open their brief instantly — any friction like an app download or account signup would kill adoption. At the same time, briefs are personal and could not be accessible to anyone but their intended recipient.
We designed a private link delivery model where each brief opens on its own secure, unguessable link with no account required, while server-side access rules ensure a recipient can only ever see and respond to their own brief. Coaches are notified the moment a brief is opened.
AI speed without losing the coach's voice
The hard part of AI-assisted feedback is trust: draft too aggressively and briefs feel robotic and impersonal; add round-trips and the two-minute workflow falls apart. The coach had to stay in control without slowing down.
We tuned the AI to draft in the coach's own direct voice and surface its additions as individual, reviewable suggestions the coach can accept, edit, or replace with their own recording. Approved content reads as one seamless brief — players never see an 'AI' label, and the coach always has the final say.
Project Timeline
Discovery
Worked with GLDS to define the core product rule: one tool, one job, one output. Scoped strictly to the Input → Generate → Deliver workflow, explicitly ruling out analytics dashboards, team management, and platform-style feature creep. The product alignment doc became the north star for every build decision.
Build
Built the full 5-step brief wizard (player selection, footage upload + filmstrip clipping, voice/transcript capture, AI brief generation with suggestion review, delivery), roster management, footage library, and the public player brief view. Firebase handled auth, storage, and real-time data. Gemini 2.5 Flash Lite handled all AI generation in a single structured call.
Launch
Delivered a production-ready build deployable to Replit with Firebase hosting for Firestore and Storage. Provided a full setup guide, Firestore security rules, Storage CORS configuration, and deployment instructions so GLDS could go live immediately with their own Firebase project and credentials.
Screenshots & Visuals
Hero section — the Performance Brief homepage
Stats and workflow overview — footage to inbox in under 2 minutes
AI brief view and player delivery experience
Feature overview and testimonials from coaches across verticals
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